If you’re learning networking or cybersecurity as a beginner, you need to understand what a port is. An IP address identifies a device. A port identifies a service running on that device. Without ports, websites, emails, and secure connections wouldn’t work. In this beginner-friendly networking lesson, you’ll learn: • What a port is in simple terms • Why ports are important in networking • Common ports like 80, 443, and 22 • How ports relate to cybersecurity This content is for: • Cybersecurity